The Inline module allows you to put source code from other programming
languages directly "inline" in a Perl script or module. The code is
automatically compiled as needed, and then loaded for immediate access
from Perl.

Inline saves you from the hassle of having to write and compile your own
glue code using facilities like XS or SWIG. Simply type the code where you
want it and run your Perl as normal. All the hairy details are handled for
you. The compilation and installation of your code chunks all happen
transparently; all you will notice is the delay of compilation on the
first run.

The Inline code only gets compiled the first time you run it (or whenever
it is modified) so you only take the performance hit once. Code that is
Inlined into distributed modules (like on the CPAN) will get compiled when
the module is installed, so the end user will never notice the compilation
time.
